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Clean Air Act stationary source · ICIS-AIR PA000805686

EQM GATHERING OPCO LLC/MAKO COMP STA, Amwell, PA: Clean Air Act compliance record, inspections, violations, penalties

EQM GATHERING OPCO LLC/MAKO COMP STA, at 1034 AMITY RIDGE RD, Amwell in Washington County, Pennsylvania, is an operating synthetic minor source of air pollution on EPA’s ICIS-AIR register. EPA’s file records its current violation status (ICIS-AIR’s high-priority violation field) as “No Violation Identified”. Washington County is on EPA’s Green Book list of areas that do not meet a national air quality standard. The status and classification are as EPA’s facility file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the source’s current standing, quarter by quarter.

Identity

Facility as filedEQM GATHERING OPCO LLC/MAKO COMP STA
ICIS-AIR IDPA000805686
EPA facility registry ID110070107011
Operating statusOperating
Emissions classificationSynthetic minor source
Current violation status (ICIS-AIR high-priority violation field)No Violation Identified
Address1034 AMITY RIDGE RD, Amwell, PA 15311
CountyWashington County
In a nonattainment countyYes (EPA Green Book)
Industry (NAICS)Oil and gas extraction (NAICS 2111)
SIC code1311
EPA region03

Cited to the EPA ICIS-AIR facility file (ECHO download).

Programs and pollutants

Velarion’s copy of EPA’s ICIS-AIR download does not include its program, pollutant and Title V certification files, so this page does not list the Clean Air Act programs EQM GATHERING OPCO LLC/MAKO COMP STA is under or the pollutants it is permitted for. The programs each evaluation and violation below was recorded under are shown with it. EPA’s free Detailed Facility Report lists both.

Compliance evaluations

DateWhat EPA recordedAgencyPrograms
June 19, 2026PCE Off-SiteStateState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
June 24, 2025PCE Off-SiteStateState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
June 26, 2024PCE Off-SiteStateState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
March 25, 2024PCE Off-SiteStateState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
August 4, 2023PCE Off-SiteStateState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
April 18, 2023PCE Off-SiteStateState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
June 22, 2022PCE Off-SiteStateState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
March 8, 2022PCE Off-SiteStateState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
October 7, 2021FCE On-SiteStateState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
June 10, 2021PCE Off-SiteStateState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
March 24, 2021PCE Off-SiteStateState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
June 26, 2020FCE On-SiteStateState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
April 6, 2020PCE Off-SiteStateState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
March 20, 2019PCE Off-SiteStateState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
June 21, 2018PCE On-Site Monitoring/SamplingStateState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
March 19, 2018PCE Off-SiteStateState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
October 12, 2017FCE On-SiteStateState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards

Violations

A high-priority violation (HPV) is the most serious class of Clean Air Act non-compliance an agency records; a federally reportable violation (FRV) is the next step down. Each row is one determination as EPA’s violation history files it.

DateWhat EPA recordedAgencyPrograms
May 22, 2021Earliest FRV determinationStateState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards

Enforcement and penalties

0 formal enforcement actions since January 1, 2017, 0 of them with a penalty filed above zero. Each penalty is shown as EPA’s formal action file states it; “Not stated” means the file gives no figure, and $0 is a disclosed zero.

Informal enforcement

DateWhat EPA recordedAgency
March 14, 2022Notice of ViolationState

Stack tests

DateWhat EPA recordedAgency
May 7, 2025PassState
December 17, 2024PassState
June 25, 2024PassState
May 16, 2023PassState
May 17, 2022PassState
May 18, 2021PassState
May 19, 2020PassState
May 15, 2019PassState
June 27, 2017PassState

Cited to the EPA ICIS-AIR evaluation, violation, stack test and enforcement files (ECHO download), events dated January 1, 2017 or later as loaded; up to 50 rows of each shown, newest first.

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How we handle your data → Privacy

EPA publishes a free Detailed Facility Report for every source on ECHO: its compliance status quarter by quarter, its evaluations, and its violations, enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter EPA facility registry ID 110070107011 there.

Nearby on the register

Figures from EPA’s ICIS-AIR download, loaded September 14, 2026.

What this page shows

This public-records page covers the Clean Air Act compliance record for EQM GATHERING OPCO LLC/MAKO COMP STA in Amwell, Washington County, Pennsylvania, listed on EPA's ICIS-AIR register as an operating synthetic minor source with the status "No Violation Identified." The facts list 17 compliance evaluations since January 1, 2017, 0 high-priority violations and 0 formal enforcement actions over that same period, as the facility file stood on September 14, 2026.